CPR training device

ABSTRACT

A CPR training device is disclosed comprising a first member including a mouthpiece portion and a first engaging portion, a second member including an output portion and a second engaging portion, and an air passageway. The first engaging portion and the second engaging portion cooperates to form a filter seating arrangement at a filter seat position when assembled together to secure a filter within the CPR training device. The air passageway is open to air outside of the CPR training device only through the mouthpiece portion and the output portion. The filter is disposed in the air passageway at the filter seat position.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a divisional of U.S. patent application Ser. No.14/594,517, filed Jan. 12, 2015, the contents of which are incorporatedby reference herein.

BACKGROUND

Cardiopulmonary resuscitation (CPR) is a technique used in emergenciesin which a person's breathing or heartbeat has stopped. The techniqueincludes a CPR performer forcing air into the lungs of a CPR recipient.The CPR performer often covers the mouth of the CPR recipient with a CPRmask and blows air through a valve connected to the CPR mask. The valveincludes a bypass port to protect the CPR performer by allowing vomit,disease, and other harmful substances to flow through the bypass ratherthan contact the CPR performer, while still permitting air intake by theCPR recipient from the CPR performer.

CPR training includes the use of masks and valves to simulate CPRtechnique on CPR manikins. While a bypass in the CPR valve is notnecessary in CPR training, a training CPR valve should be as realisticas possible with an amount of backpressure equivalent to a CPR valve foreffective CPR training. Further, the risk of germ contamination of theCPR manikins and training valves is great because multiple traineesoften use the same CPR manikins and training valves. There exists a needfor a CPR training device and method of using a CPR training device thatallows effective CPR simulation while preventing the transmission ofgerms during CPR training.

SUMMARY

In accordance with aspects of the present disclosure, a CPR trainingdevice is disclosed. The CPR training device includes a first memberincluding a mouthpiece portion and a first engaging portion, a secondmember including an output portion and a second engaging portion, and anair passageway. The first engaging portion and the second engagingportion cooperate to form a filter seating arrangement at a filter seatposition when assembled together to secure a filter within the CPRtraining device. The air passageway is open to air outside of the CPRtraining device only through the mouthpiece portion and the outputportion. The filter is disposed in the air passageway at the filter seatposition.

In accordance with aspects of the present disclosure, a CPR trainingdevice is disclosed. The CPR training device includes a first memberincluding a mouthpiece portion and a first engaging portion, a secondmember including an adapter portion, a second engaging portion, and afilter seat portion, an air passageway open to air outside of the CPRtraining device only through the mouthpiece portion and the outputportion, a filter disposed in the air passageway at the filter seatportion, and a CPR mask attached to the adapter portion. The firstengaging portion and the second engaging portion engage to secure thefilter within the CPR training device.

In accordance with aspects of the present disclosure, a method of usinga CPR training device is disclosed. The method includes providing a CPRtraining device having a first member detachably coupled to a secondmember and a first filter disposed within the CPR training device to aCPR trainee, permitting the CPR trainee to simulate a CPR event with theCPR training device, separating the first member from the second member,discarding the first filter, cleaning the first member and the secondmember, coupling the first member to the second member with a secondfilter disposed within the CPR training device.

BRIEF DESCRIPTION OF THE DRAWINGS

The embodiments described herein and other features, advantages, anddisclosures contained herein, and the manner of attaining them, will bebetter understood from the following description in conjunction with theaccompanying drawing figures, in which like reference numerals identifylike elements, and wherein:

1 is a perspective view of a CPR training device according to anembodiment of the present disclosure;

FIG. 2 is a side elevation view of a CPR training device according to anembodiment of the present disclosure;

FIG. 3 is a side elevation view of a CPR training device according to anembodiment of the present disclosure;

FIG. 4 is an exploded view of a CPR training device according to anembodiment of the present disclosure;

FIG. 5 is an exploded view of a CPR training device according to anembodiment of the present disclosure;

FIG. 6 is an exploded view of a CPR training device according to anembodiment of the present disclosure;

FIG. 7 is a side elevation view of a CPR training device according to anembodiment of the present disclosure;

FIG. 8 is an exploded view of a CPR training device according to anembodiment of the present disclosure; and

FIG. 9 illustrates a method of using a CPR training device according toan embodiment of the present disclosure.

DETAILED DESCRIPTION

In the following detailed description of embodiments of the presentdisclosure, reference is made to the accompanying drawings that form apart hereof, and in which is shown by way of illustration, and not byway of limitation, such specific embodiments. It is to be understoodthat other embodiments may be utilized and that changes may be madewithout departing from the spirit and scope of the present disclosure.

Reference is now made to FIG. 1, which shows a CPR training device 10 ofan embodiment of the present disclosure in an assembled state. Thedevice 10 includes a first member 12 having a mouthpiece portion 14 anda first engaging portion 16. The device 10 further includes a secondmember 18 having an output portion 20 and a second engaging portion 22.The output portion 20 of an embodiment is also referred to as anadapterportion 32. The device 10 of the embodiment shown in FIG. 1further includes an air passageway 24 extending at least from themouthpiece portion 14 to the output portion 20.

Referring now to FIG. 2, the device 10 of an embodiment includes thefirst engaging portion 16 and the second engaging portion 22 cooperatingto form a filter seating arrangement 26 at a filter seat position 28when the first engaging portion 16 and the second engaging portion 22 ofthe device 10 are assembled together to secure a filter 30 within theCPR training device 10. As illustrated in the embodiment of FIG. 2, theair passageway 24 is open to air outside of the CPR training device 10only through the mouthpiece portion 14 and the output portion 20. Thefilter 30 is disposed in the air passageway 24 at the filter seatposition 28. In one embodiment, the air passageway 24 is linear and issubstantially at a right angle to the plane of the filter 30.

In one or more embodiments, the filter 30 comprises a paper material. Inone or more embodiments, the filter 30 comprises a fabric material. Anembodiment includes the filter 30 being a HEPA style filter. The filter30 prevents contamination originating from a person using the device 10from entering a CPR training lung, such as a manikin lung. Further, thefilter 30 prevents contaminants already in the lung from reaching theperson using the device 10.

In one or more embodiments, a CPR mask 34 is attached to the outputportion 20 or adapter portion 32. As shown in the embodiment of FIG. 2,the output portion 20 or adapter portion 32 includes an inner diameter36 and an outer diameter 38. Further, the CPR mask 34 of an embodimentincludes an orifice 40 having an outer diameter 42. The output portion20 or adapter portion 32 of the FIG. 2 embodiment is sized to engage theouter diameter 42 of the CPR mask orifice 40. In one embodiment, boththe outer diameter 42 of the CPR mask orifice 40 and the inner diameter36 of the output portion 20 or adapter portion 32 is 15 millimeters toallow a press fit of the CPR mask 34 onto the output portion 20 oradapter portion 32.

Referring now to FIG. 3, a CPR mask 44 of an embodiment includes anorifice 46 having an inner diameter 48. The output portion 20 or adapterportion 32 of the FIG. 3 embodiment is sized to engage the innerdiameter 48 of the CPR mask orifice 46. In one embodiment, both theinner diameter 48 of the CPR mask orifice 46 and the outer diameter 38of the output portion 20 or adapter portion 32 is 22 millimeters toallow a press fit of the CPR mask 44 onto the output portion 20 oradapter portion 32. One or both of the inner diameter 36 and the outerdiameter 38 of one or more embodiments is tapered for ease of assemblywith one of the masks 34, 44. In another embodiment, the taper of theinner diameter 36 and the outer diameter is between one and threedegrees.

As shown in the embodiments of FIGS. 2 and 3, the filter 30 isultimately secured within the CPR training device 10 at an end surface56 of the first engaging portion 16. A filter seat position 28 isdisposed along a plane 90 perpendicular to an axis 92 extending throughthe mouthpiece portion 14 and the output portion 20 or adapter portion32 when the first engaging portion 16 and the second engaging portion 22are engaged. In the embodiments shown in FIGS. 2 and 3, the secondengaging portion 22 comprises a filter seat portion 94, and the filter30 is secured between the first engaging portion 16 and the filter seatportion 94. The device 10 of additional embodiments includes the firstmember 12 having one or more of the output portion 20 or adapter portion32 and the second engaging portion 22 and the second member having oneor more of the mouthpiece portion 14 and the first engaging portion 16.The device 10 further includes a second member 18 having an outputportion 20 and a second engaging portion 22. In one embodiment, thefirst engaging portion 16 and the second engaging portion 22 are shapedand fit together so as to pinch the filter 30 between them so as tomaintain a relatively sealed circumferential portion of the filter so asto better direct and maintain air flow through rather than around thefilter 30. In this way, the CPR training device 10 with captured filter30 best approximates the resistance of a standard CPR valve.

In another embodiment, the first member 12 and the second member 18 areat least semi-transparent to allow inspection of the filter 30 and theair passageway 24. In one or more embodiments, one or both of the firstmember 12 and the second member 18 are opaque or partially opaque andinclude any color or markings suitable for use or indication to the useror members of the general public.

Reference is now made to FIG. 4, which shows an embodiment of the device10. As shown in FIG. 4, the first engaging portion 16 and the secondengaging portion 22 include helical threads 50. The first engagingportion 16 includes inner helical threads 52 and the second engagingportion 22 includes outer helical threads 54 that are complimentary tothe inner helical threads 52. The first engaging portion 16 and thesecond engaging portion 22 form the filter seating arrangement 26 at thefilter seat position 28 when the first engaging portion 16 and thesecond engaging portion 22 of the device 10 are rotated into each other.

Referring now to FIG. 5, an embodiment of the device 10 includes thefirst engaging portion 16 having an annular protrusion 58 and the secondengaging portion 22 having an annular recess 60 configured to receivethe annular protrusion 58. The first engaging portion 16 and the secondengaging portion 22 form the filter seating arrangement 26 at a filterseat position 28 when the first engaging portion 16 is inserted into thesecond engaging portion 22 of the device 10. The filter 30 is ultimatelysecured within the CPR training device 10 at the end surface 56 of thefirst engaging portion 16, as shown in FIG. 5.

Referring now to FIG. 6, an embodiment of the device 10 includes thefirst engaging portion 16 having at least one radial protrusion 62 andthe second engaging portion 22 having at least one slot 64 configured toreceive the at least one radial protrusion 62. As shown in FIG. 6, thefirst engaging portion 16 of an embodiment includes two radialprotrusions 62, and the second engaging portion 22 of the embodimentincludes two slots 64. Each slot 64 are angled at least partially intothe second engaging portion 22 with a locking point 66 near an end. 68of ear h slot 64 such that the one or more radial protrusions 62 move ineach slot. 64 until being secured at the end 68 of the slot 64. Thefirst engaging portion 16 and the second engaging portion 22 form thefilter seating arrangement 26 at a filter seat position 28 when thefirst engaging portion 16 is inserted into the second engaging portion22 of the device 10. The filter 30 is ultimately secured within the CPRtraining device 10 at an end surface 56 of the first engaging portion16, as shown in FIG. 6.

Referring now to FIG. 7, an embodiment of the device 10 includes thefirst engaging portion 16 and the second engaging portion 22 beingpivotally connected to each other with hinge 70. One or both of thefirst engaging portion 16 and the second engaging portion 22 includes alatch 72 to engage the other of the first engaging portion 16 and thesecond engaging portion 22. The latch 72 may include such structures ormechanisms as a hook, magnet(s), snap(s), button(s), or any similarstructure or mechanism. The first engaging portion 16 and the secondengaging portion 22 form the filter seating arrangement 26 at a filterseat position 28 when the first engaging portion 16 is inserted into thesecond engaging portion 22 of the device 10. The filter 30 is ultimatelysecured within the CPR training device 10 at an end surface 56 of thefirst engaging portion 16, as shown in FIG. 7.

Referring now to FIG. 8, an embodiment of the device 10 includes thefirst engaging portion 16 and the second engaging portion 22 engagingach other an interference fit. The first engaging portion 16 includes anouter diameter 74 that is equal to or greater than an inner diameter 76of the second engaging portion 22. One or both of the first engagingportion 16 and the second engaging portion 22 includes a chamfer ortaper to allow the first engaging portion 16 to be press-fit into thesecond engaging portion 22. The first engaging portion 16 of theembodiment shown in FIG. 8 includes a tapered outer diameter 74 to allowfitting of the first engaging portion 16 into the second engagingportion 22. The first engaging portion 16 and the second engagingportion 22 form the filter seating arrangement 26 at a filter seatposition 28 when the first engaging portion 16 is inserted into thesecond engaging portion 22 of the device 10. The filter 30 is ultimatelysecured within the CPR training device 10 at an end surface 56 of thefirst engaging portion 16, as shown in FIG. 8.

Reference is now made to FIG. 9, which illustrates a method 100 of usingthe CPR training device 10. The method 100 includes providing, at step102, the CPR training device 10 having the first member 12 detachablycoupled to the second member 18 and a first filter disposed within theCPR training device 10 to a CPR trainee. The method 100 further includespermitting, at step 104, the CPR trainee to simulate a CPR event withthe CPR training device. In one or more embodiments, simulating a CPRevent includes engaging the mouthpiece portion 14 of the CPR trainingdevice 10 with a mouth. In one or more embodiments, simulating a CPRevent includes engaging one of the CPR masks 34, 44 with the adapterportion 32 or the output portion 20 of the CPR training device 10. Themethod 100 further includes separating, at step 106, the first member 12from the second member 18 and discarding, at step 108, the first filter30. The method 100 further includes cleaning, at step 110, the firstmember and the second member and coupling, at step 112, the first member12 to the second member 18 with a second filter disposed within the CPRtraining device 10.

In one or more embodiments, the cleaning at step 110 is performed inaccordance with CDC guidelines by gently washing the first member 12 andthe second member 18 in warm soapy water using dishwashing liquid. Thefirst member 12 and the second member 18 are then rinsed with cleanwater and completely submerged into a disinfection solution of 0.25 cupunscented liquid chlorine bleach per gallon of water. The first member12 and the second member 18 are then permitted to stand in a bleach andwater solution for ten minutes, rinsed with fresh clean water, and airdried. In another embodiment, the first member 12 and the second member18 are subjected to elevated temperatures necessary to disinfect using,in one non-limiting example, an autoclave. In another embodiment, thefirst member 12 and the second member 18 are cleaned in a dishwasheranother embodiment of the present disclosure, a method does not includeseparating the first member 12 and the second member 18 and includesremoving the first filter and inserting the second filter withoutseparating the first member 12 and the second member 18. In such anembodiment, the device 10 includes a filter module that includes afilter that is capable of being removed without separation of the firstmember 12 and the second member 18, such as, in a non-limiting example,by sliding the filter module into and out of the device 10 through aside surface of the device 10.

The method 100 of additional embodiments of the present disclosurefurther includes the first member 12 being detachably coupled to thesecond member 18 using helical threads 50, as described in theembodiment of FIG. 4, the first member 12 including the annularprotrusion 58 to detachably couple to the annular recess 60 of thesecond member 18, as described in the embodiment of FIG. 5, the firstmember 12 including the radial protrusion 62 to detachably couple to theslot 64 of the second member 18, as described in the embodiment of FIG.6, the first member 12 including the latch 72 to detachably couple tothe second member, as described in the embodiment of FIG. 7, and thefirst member 12 being detachably coupled to the second member 18 in aninterference fit, as described in the embodiment of FIG. 8. In one ormore embodiments, the first filter and/or the second filter comprises apaper material. In one or more embodiments, the first filter and/or thesecond filter comprises a fabric material.

The device 10 and methods of the present disclosure preventcontamination to and from a CPR trainee using the device 10. The device10 and methods prevent germs and other contaminants from entering a CPRtraining lung, such as a manikin lung, or other training equipment andprevent germs and other contaminants in the training lung or othertraining equipment from reaching the CPR trainee. Additionally, thedevice 10 and associated methods allow a CPR training device thateffectively simulates a CPR valve that is cleaned and reused by multipleCPR trainees.

While particular embodiments of the present disclosure have beenillustrated and described, it would be obvious to those skilled in theart that various other changes and modifications can be made withoutdeparting from the spirit and scope of the present disclosure. It istherefore intended to cover in the appended claims all such changes andmodifications that are within the scope of this disclosure.

As shown in FIGS. 1, 2 & 3, mouthpiece portion 14 is a straight,elongate, and vertically oriented (relative to air passageway 24/axis92) annular sidewall; first engaging portion 16 is a straight, elongate,and vertically oriented (relative to air passageway 24/axis 92) annularsidewall having surface 56 disposed on a distal end thereof; outputportion 20 (and/or adapter portion 32) is a straight, elongate, andvertically oriented (relative to air passageway 24/axis 92) annularsidewall; second engaging portion 22 is a straight, elongate, andvertically oriented (relative to air passageway 24/axis 92) annularsidewall; and filter 30 is in a horizontal plane that is disposedvertically below first engaging portion 16. As shown FIGS. 1, 2, & 3,when assembled, first engaging portion 16 is adjacent to, and radiallyinside of, second engaging portion 22.

Referring now to FIGS. 2 & 3, a flat portion 180 of the first engagingportion 16 is disposed between an inner surface 170 of the mouthpieceportion 14 and an inner surface 160 of the first engaging portion 16,the flat portion 180 of the first engaging portion 16 beingperpendicular to the inner surface 170 of the mouthpiece portion 14 andthe inner surface 160 of the first engaging portion 16. As shown inFIGS. 2 & 3, the inner surface 160 of the first engaging portion 16 andthe inner surface 170 of the mouthpiece portion 14 comprise sidewallsthat are entirely straight, elongate, and vertically oriented (relativeto air passageway 24/axis 92). As shown in FIGS. 2 & 3, the innersurface 170 of the mouthpiece portion 14 forms a smaller diameteropening relative to the inner surface 160 of the first engaging portion16.

While this invention has been shown and described with respect to adetailed embodiment thereof, it will be understood by those skilled inthe art that changes in form and detail thereof may be made withoutdeparting from the scope of the claims of the invention.

What is claimed is:
 1. A method of using a CPR training devicecomprising: providing a CPR training device having a first memberdetachably coupled to a second member and a first filter disposed withinsaid CPR training device to a CPR trainee or trainer; wherein the CPRtraining device further comprises: said first member includes a firstengaging portion having an inner surface, an outer surface, and a flatend surface therebetween, said second member includes a second engagingportion having an inner surface and an outer surface, said first memberand said second member being reversibly attached, wherein the outersurface of the first engaging portion is engaged with the inner surfaceof the second engaging portion, whereby, when said first member and saidsecond member are assembled such that the flat end surface of said firstengaging portion secures the first filter against a flat portion of theinner surface of the second engaging portion, said first engagingportion and said second engaging portion cooperate to form a filterseating arrangement at a filter seat position along a horizontal plane;the inner surface of said first engaging portion comprising sidewallsthat are straight, elongate, and vertically oriented relative to theflat end surface of said first engaging portion being entirelyperpendicular to an air passageway defined by an interior space of thefirst member and second member; instructing said CPR trainee or trainerto engage said CPR training device with a CPR mask; instructing said CPRtrainee or trainer to separate said first member from said secondmember; instructing said CPR trainee or trainer to discard said firstfilter; instructing said CPR trainee or trainer to couple said firstmember to said second member with a second filter disposed within saidCPR training device.
 2. The method of claim 1, wherein said first memberis detachably coupled to said second member using helical threads. 3.The method of claim 1, wherein said first member includes an annularprotrusion to detachably couple to an annular recess of said secondmember.
 4. The method of claim 1, wherein said first member includes aradial protrusion to detachably couple to a slot of said second member.5. The method of claim 1, wherein said first member includes a latch todetachably couple to said second member.
 6. The method of claim 1,wherein said first member is detachably coupled to said second member inan interference fit.
 7. The method of claim 1, wherein said first filterand said second filter comprise a paper material.
 8. The method of claim1, wherein said first filter and said second filter comprise a fabricmaterial.
 9. The method of claim 1 wherein the first member includes amouthpiece portion; a flat portion of the first engaging portion isdisposed between an inner surface of the mouthpiece portion and theinner surface of the first engaging portion, the flat portion of thefirst engaging portion being perpendicular to the inner surface of themouthpiece portion and the inner surface of the first engaging portion,the inner surface of the mouthpiece portion forming a smaller diameteropening relative to the inner surface of the first engaging portion. 10.A method of using a CPR training device comprising: providing a CPRtraining device having a first member detachably coupled to a secondmember and a first filter disposed within said CPR training device to aCPR trainee or trainer; wherein the CPR training device furthercomprises: said first member includes a first engaging portion having aninner surface, an outer surface, and a flat end surface therebetween,said second member includes a second engaging portion having an innersurface and an outer surface, said first member and said second memberbeing reversibly attached, wherein the outer surface of the firstengaging portion is engaged with the inner surface of the secondengaging portion, whereby, when said first member and said second memberare assembled such that the flat end surface of said first engagingportion secures the first filter against a flat portion of the innersurface of the second engaging portion, said first engaging portion andsaid second engaging portion cooperate to form a filter seatingarrangement at a filter seat position along a horizontal plane; theinner surface of said first engaging portion comprising sidewalls thatare straight, elongate, and vertically oriented relative to the flat endsurface of said first engaging portion being entirely perpendicular toan air passageway defined by an interior space of the first member andsecond member; instructing said CPR trainee or trainer to engage saidCPR training device with a CPR mask.
 11. The method of claim 10 furthercomprising: instructing said CPR trainee or trainer to separate saidfirst member from said second member; instructing said CPR trainee ortrainer to discard said first filter; instructing said CPR trainee ortrainer to couple said first member to said second member with a secondfilter disposed within said CPR training device.